Electric steam radiator



1934- J. D. LANDERMAN v ELECTRIC STEAM RADIATOR Filed March 26, 1932 2Sheets-Sheet 1 f wgm 1934- J. D. LANDERMAN ELECTRIC STEAM RADIATOR FiledMarch 26, 1952 2 Sheets-Shegt 2 4 144% aiteu 'iigy 7 plication,

Patented Feb. 6, 193:!

ELECTRIC STEAM RADIATOR John D.

Landerman, Brookline, Mass, assignor to Electric Steam HeatingCorporation, a corporation of Massachusetts Application March 26, 1932.Serial No. 601,334 1 Claim. (Cl. 219-38) My present invention relates toportable steam generating radiators for heating purposes, andparticularly to the steam generating construction by the utilization ofa removable and renewable electric heating element.

My present application and my companion ap- Serial No. 456,601 filed May28, 1930 is based upon my prior and abandoned application, No. 200,652,filed June 22, 1927.

The invention will be best understood from the following descriptionwhen read in the light of the accompanying drawings showing a specificembodiment of the invention selected for illustrative purposes, whilethe scope of the invention will be more particularly pointed out in theappended claim.

In the drawings,

Fig. 1 is an isometric view of an assembled radiator constructedaccording to my invention;

Fig. 2 is a longitudinal section of the radiator constructed accordingto Fig. 1, and

Figs. 3 and 4 respectively are sections on the lines 3-3 and 4--4 ofFig. 2.

Referring to the drawings, the radiator comprises a cabinet which, asherein illustrated, comprises a front wall formed with the foraminouspanels 1 and 3 suitably constructed to permit the passage of airtherethrough. As shown, the cabinet has the perforate top 5, walls 7,and back wall 9.

As shown, the cabinet, which may be constructed of any suitablematerial, preferably metal, is supported on legs 11 having casters 12,the latter permitting the device readily to be moved from place toplace.

Herein the bottom of the cabinet is open, while interiorly of thecabinet, adjacent the bottom, are arranged plates 15 which convergeupwardly and form the lower section of a flue. The intermediate section1'7 of the flue is herein rectangular and coincides with the uppersection of the-flue which comprises the sheets 19 and 21, the sheet 19being inclined to contact with the front of the cabinet adjacent thelower edge of the foraminous panel 3 which forms the top opening for theflue, while the plate 21 is bent laterally, as indicated at 23, andextends to adjacent the front wall of the cabinet in spaced relation tothe top wall 5; As shown, the plate 23 adjacent the front of the cabinetis bent to form a gutter 25 for catching dust which otherwise woulddischarge from the flue.

As shown, the lowermost portion of the cabinet contains a steamgenerator herein comprising a flattened container 2'7 having the fillingorifice 29 by means of which a liquid may be entered into the containerto the lever 31, after which the orifice may be closed by the cap orplug 33. Interiorly, the container below the water level 31 haspositioned therein an electric heating element 35 which may be of theresistance type, conductors 3'7 leading from said heat resisting elementto a switch 39 and terminal 41, to the latter of which may be attachedthe flexible cable 43 having the plug 45 for attachment in a known 5manner to a wall socket.

As shown, one end of the container is provided with a steam-dome 4'7from which leads a steam pipe 49 to a header 51. In communication withthe header 51 is a pair of parallel pipes 53 which extend longitudinallyof the intermediate section 1'7 of the flue and communicate at the otherend of said section with a header 55, the pipes 53 preferably beingslightly inclined so as to facilitate drainage of condensed steam backto the generator. As shown, the header 55 is provided with an air reliefvalve 5'7 and the header 51 with a pressure relief valve 59, the latterfor preventing an excess of steam pressure in the system.

As shown, the flue section 1'7 is provided with a plurality ofvertically arranged corrugated plates 61 which are positioned closelytogether so as to divide the flue at the intermediate portion thereofinto a plurality of narrow channels. The pipes 53 extend throughperforations in the plates 61 and thereby support said plates, thelatter of which provide large heating surfaces for radiating the heat ofthe steam in said pipes.

As illustrated, between the top wall 5 of the cabinet and the transverseportion 23 of the plate 21 is positioned a shallow pan 63 for containingwater, which water will be evaporated by the heat imparted thereto fromthe flue and will keep the top wall 5 of the cabinet cool by insulatingsaid top wall from the flue. Conveniently, the top wall 5 of the cabinetmay be removable by allowing it to rest upon the flanges 65 at the topof the vertical walls of the cabinet, this removable top permitting thewater in the pan to be replenished from time to time. As shown, thevertical walls of the cabinet adjacent the top are provided withperforations 6'7 permitting the escape of water vapors from the pan tothe atmosphere.

As shown, the plates 19 and 21, defining the front and back of the upperportion of the flue, are spaced from the front and back walls of thecabinet, which construction prevents said walls from becoming undulyheated, and for preventing dissipation of heat through the back of thecabinet and the top thereof. it. sheet 69 of insulating material may bepositioned adjacent the back of the upper and intermediateportions of Inaddition to, or in place of, current contro1- ling means or switch 39, Imay apply an auto matic switch controlled by a thermostat, as iridicatedat 75. While it is customary to utilize a thermostat afiixed to the roomin which the radiator may be placed, yet as my present in vention is aportable radiator capable of being readily transferred from room. toroom, it is more desirable to have the thermostat affixed thereto, thusmaking the some with complete

